Excavator



(N0 Model.)

V. D. SIMAR 8v J. DALE.

EXGAVATOR.

No. 278.368. Paten'td May 29,1883.

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To all whom it may concern:

. UNITED STATES PATENT OFFICEQ I VINE D. SIMAR AND JOHNDALE, OF s1 PAUL, MINNESOTA.

EXCAVATOR.

SPECIFICATION forming part of Letters Patent No. 278,368, dated May 29, 1883.

Application filed August 25, 1882. (No model.)

Be it known that we, VINE DORANGE SIMAR and JOHN DALE, both citizens of the United States, and both of St. Paul, in the county of Ramsey and State of Minnesota, have jointly invented certain new and useful Improvements -lll Excavators, of which thefollowing is a specification.

This invention relates to excavators; and it consists in the construction and arrangement of parts, as hereinafter shown and specifically claimed.

In the drawings, Figure l is a side view. Fig. 2 is a plan view. Fig. 3 is an enlarged perspective view of one of the buckets and its chains. Fig.4is an enlarged sectionalview of the lower shaft .of the main excavator and two of the buckets, illustrating the manner of dumping the load. I

A is the track, upon which a circular frame or turn-table, B, is adapted to berun back and forth by ordinary flanged wheels, 0. This track may be made in any suitable manner,

either sections of railroad-rails, as shown in the drawings, or wooden frames made for the purpose and laid over temporary ties, the track being merely for a temporary support for the machinery, and will be laid down in front of it as fast as it advances into the excavation. When used in railroadwork the regular track may be laid as fast as the machine advances.

Upon top of the circular frame B is mounted by wheels D, and adapted to run around upon the circular frame, another frame,'E, which carries the excavating machinery.

F is an endless belt of one or more chains running over drums G G one below the lower side of the frame E, on one side, and the other above thelframe E, on the other side, the belt thus running at an angle of about thirty degrees, Across this belt,"at regular intervals, buckets a are secured,- and adapted, when the belt is revolved, to dig into the earth, as shown at H, and carry it up and dump it into a chute, I. Between the buckets the chains are covered with canvas to hold theearth.

Two endless chains, M, are arranged to run over chain-pulleys M, secured in a frame, N the lower end of the frame adjustable higher or lower in slots b in standard P, or by other suitable means, and the upper end held at any angle by a guy-rope or chain, d, operated by convey it down to the traveling belt F,where the buckets a, catch it and convey it up and deliver it upon the chute I. The buckets R, in running down through the earth, will draw down ahead of them a much largeramount of earth than their interior will hold, which will be fed directly to the buckets a, while the earth that remains in the buckets will be carried up around the lower pair of chain-pulleys, M, and dumped out of the back end of the buck-' ets as they turn over in commencing the return movement, as shown at z in Figs. 1 and 4.

By lowering the frame N down as the earth iscut away by the buckets, a channel may be cut into the bank from the top to the bottom, or even below the bottom, as the upper end of the frame may be lowered down below the level ofthe track. Then the machine is moved sidewise and another cut made it it is desired to widen the cut, or moved forward if it is desired to cut farther into the bank 5; or by swing. ing the apparatus around on the turn-table B a semicircular cutting of a radius the length of the frame N may be excavated.

Midway between the buckets It colters or cutters h are arranged upon the chains M, and projecting down between the buckets, and adapted to loosen the earth in front of the sides of the buckets to assist them in their work.

The chute I will usually be high enough, so that a wagon or car may be run beneath it and be filled. A drop-'door, t, will be arrangedupon the bottom of the chute I, so that the falling earth may be shut off while the wagons or cars are being changed. 7

Another feature of this apparatus is that in railroad-excavations, after the cut is made through a hill, the frame N may be turned and adjusted to the required slope of the sides of the cut, and the machine moved along and the sides of the out dressed down in a symmetrical form.

The dotted lines m represent the engine and boiler for operating the apparatus, which may be either mounted upon the same frame with the apparatus, as shown, or set at a distance and connected therewith by a belt or other means of transmitting power.

In some kinds of soil the buckets B may be removed and a series of rakes or picks placed upon the chains to rake or pick the soil down upon the belt F; or picks or rakes and buckets may be arranged alternately upon the chains.

Several sizes of the frames N may be furnished with each machine, and the chains M adaptedto be shortened orlengthened to adapt the machines to banks or cuts of \"aryingdepths or heights.

'What we claim as new is- 1. In an excavating-machine, the combination of a series of buckets on an endless chain, a supporting-frame for said chain of buckets, laterally adjustable, so as to follow the slope of the bank being cut, and an endless chain of cutting and delivery buckets below and in advance of the first series of buckets, so as to out below and in advance of said buckets and receive theearth therefrom, substantially as and for the purpose set forth.

I 2. In an excavating-machine, the combination of a turn-table frame, a frame connected thereto and made laterally adjustable, so as to follow the slope of the bank being cut, an endless chain of buckets connected to the adjustable frame, so as to cut downward, and a receiving and delivery platform to receive the dirt at the lower end of the adjustable frame as it is discharged from the buckets, whereby the cutting buckets will cut downward and follow the slope of the bank, and can be turned to cut on different sides of the machine, substantially as and for the purposes set forth.

3. In an excavating-machine, an endless belt carrying excavating-buckets adapted to be adjusted to fit and follow the slope of the earth being acted upon, and revolved to cause said buckets to travel through the earth being excavated, from the outer toward the inner end of said chain of buckets, in combination with an endless belt, F, provided with combined buckets and cutters a, substantially as hereinbei'ore shown.

4. The combination of the endless chains M,

having buckets It, and running over suitable pulleys, and mounted in an adjustable frame, N, endless belt F, having combined buckets and cutters a, chute I, base-frame E, turntable 13, and track A, substantially as hereinbefore shown.

In testimony whereof we have hereunto set our hands in the presence of two subscribing witnesses.

' VINE DOBANOE SIMAR.

7 JOHN DALE.

Witnesses: EDWARD ROTERT, O. N. WOODWARD. 

